Shield volcano

Category archives for Shield volcano

The headline for this entry sounds more dramatic than it is, but one of the last structures in the ill-fated Royal Gardens subdivision on the big island of Hawai’i finally met its fiery demise over the weekend. For those of you unfamiliar with the plight of the subdivision, Royal Gardens is part of Kalapana, and…

On Sunday afternoon, a large ash eruption occurred at Halemaumau Caldera at Kilauea. Not only did the volcano belch more grey ash than usual, but also red-hot incandescent material can be clearly seen being thrown from the vent during the vigorous eruption. The coolest thing about the eruption is that it was all caught on…

It seems that a new fissure eruption has begun at Piton de la Fournaise on Reunion Island in the Indian Ocean*. In fact, the report goes onto say that a small lava lake has formed at the main crater of the eruption. This marks the first eruption at Piton de la Fournaise since March 2007. Piton de…

Not sure how it was kept quiet for most of the week (well, at least to me), but geologists at the HVO have noticed a new lava lake in Halemaumau Caldera on Kilauea (Hawai’i). The lava lake is around 330 feet (~100 meters) below the crater rim and ~160 feet (50 meters) across with sections…

Not to feel left out from all the action going on in Alaska, Kilauea in Hawai’i has a new lava flow issuing from the Thankgiving Eve Breakout (TEB) vent area. It sounds like a fairly small flow and none of the flows have reached the ocean. The TEB was the November 21, 2007 event where activity…

The Okmok Caldera eruption is still going on, almost a month after it started. The latest USGS/SI Weekly Report states: Strong volcanic tremor on 2 August prompted AVO to raise the Volcano Alert Level to Warning and the Aviation Color Code to Red. Cloudy conditions prevented satellite observations. Later that day, AVO geologists in the area…

After raising the alert level at Okmok Caldera in Alaska to Red over the weekend, AVO has reduced it to Orange. Reports have the volcano producing ash columns of less than 20,000 feet versus the 35,000+ foot columns earlier in the weekend. At the same time, Cleveland Volcano is continuing to issue ash from the…

There haven’t been any major developments volcano-wise over the weekend, just a few updates on some current rumblings: Soufriere Hills (Montserrat) coughed up more ash, producing ash columns to “thousands of feet” according to reports from the MVO. The eruptions/explosions were centered at the lava dome on the summit of the volcano, Seismicity has also increased,…

Just when you thought it was exciting enough in the Aleutians, word comes in that Cleveland Volcano is erupting as well. Cleveland is a very noisy volcano on Chuginadak Island, having last erupted in February (although it hasn’t been updated on the GVP page). Aircraft have been warned about both eruptions in the Alaskan island chain.…

I’m back from my conference and will hopefully be getting back to a regular schedule! In the meantime, the biggest news is still the eruption of Okmok Caldera in Alaska. The latest news has the eruption still going strong and the USGS predicting it will continues for potentially weeks to months. The eruption is apparently…